1
|
Yang HB, Gan ZG, Li YJ, Liu ML, Xu SY, Liu C, Zhang MM, Zhang ZY, Huang MH, Yuan CX, Wang SY, Ma L, Wang JG, Han XC, Rohilla A, Zuo SQ, Xiao X, Zhang XB, Zhu L, Yue ZF, Tian YL, Wang YS, Yang CL, Zhao Z, Huang XY, Li ZC, Sun LC, Wang JY, Yang HR, Lu ZW, Yang WQ, Zhou XH, Huang WX, Wang N, Zhou SG, Ren ZZ, Xu HS. Discovery of New Isotopes ^{160}Os and ^{156}W: Revealing Enhanced Stability of the N=82 Shell Closure on the Neutron-Deficient Side. Phys Rev Lett 2024; 132:072502. [PMID: 38427897 DOI: 10.1103/physrevlett.132.072502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/12/2023] [Accepted: 01/19/2024] [Indexed: 03/03/2024]
Abstract
Using the fusion-evaporation reaction ^{106}Cd(^{58}Ni,4n)^{160}Os and the gas-filled recoil separator SHANS, two new isotopes _{76}^{160}Os and _{74}^{156}W have been identified. The α decay of ^{160}Os, measured with an α-particle energy of 7080(26) keV and a half-life of 201_{-37}^{+58} μs, is assigned to originate from the ground state. The daughter nucleus ^{156}W is a β^{+} emitter with a half-life of 291_{-61}^{+86} ms. The newly measured α-decay data allow us to derive α-decay reduced widths (δ^{2}) for the N=84 isotones up to osmium (Z=76), which are found to decrease with increasing atomic number above Z=68. The reduction of δ^{2} is interpreted as evidence for the strengthening of the N=82 shell closure toward the proton drip line, supported by the increase of the neutron-shell gaps predicted in theoretical models.
Collapse
Affiliation(s)
- H B Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Z G Gan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516007, China
| | - Y J Li
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - M L Liu
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - S Y Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - C Liu
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - M M Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Z Y Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - M H Huang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516007, China
| | - C X Yuan
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - S Y Wang
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - L Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J G Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X C Han
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - A Rohilla
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - S Q Zuo
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - X Xiao
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - X B Zhang
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - L Zhu
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - Z F Yue
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - Y L Tian
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516007, China
| | - Y S Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516007, China
| | - C L Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Z Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - X Y Huang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Z C Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - L C Sun
- Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, Guilin 541004, China
| | - J Y Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516007, China
| | - H R Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Z W Lu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - W Q Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X H Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - W X Huang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516007, China
| | - N Wang
- Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, Guilin 541004, China
| | - S G Zhou
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Z Z Ren
- School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
| | - H S Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516007, China
| |
Collapse
|
2
|
Fahmy LM, Yang HR, Zhou M, Beylergil V, Schreidah CM, Schwartz LH, Fojo T, Bates SE, Geskin LJ. Estimates of the rate of growth of lymph nodes measured volumetrically predicts survival in cutaneous T-cell lymphoma (CTCL). Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00625-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
3
|
Wei JF, Yang HR, Peng Y, He S, Chen Y, Zhao ZG, Meng W, Zhou X, Liang YJ, Zhou WX, Wei X, Li X, Chen F, Zhu ZK, Zhang Y, He JJ, Chen M, Feng Y. [Preliminary clinical experience of the novel transcatheter aortic valve system Prizvalve ® for the treatment of severe aortic stenosis]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:137-141. [PMID: 35172457 DOI: 10.3760/cma.j.cn112148-20211030-00937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To evaluate the safety and efficacy of transcatheter aortic valve implantation (TAVI) with the novel Prizvalve® system in treating severe aortic stenosis. Methods: This is a single-center, prospective, single-arm, observational study. A total of 11 patients with severe aortic stenosis with high risk or inappropriate for conventional surgical aortic valve replacement (SAVR) were included, and TAVI was achieved with the Prizvalve® system between March 2021 and May 2021 in West China Hospital. Transthoracic echocardiography (TTE) was performed immediately after prosthesis implantation to evaluate mean transaortic gradient and maximal transaortic velocity. The device success rate was calculated, which was defined as (1) the device being delivered via the access, deployed, implanted and withdrawn, (2) mean transaortic gradient<20 mmHg (1 mmHg=0.133 kPa) or a maximal transaortic velocity<3 m/s post TAVI, and without severe aortic regurgitation or paravalvular leak post TAVI. TTE was performed at 30 days after the surgery, and all-cause mortality as well as the major cardiovascular adverse events (including acute myocardial infarction, disabling hemorrhagic or ischemic stroke) up to 30 days post TAVI were analyzed. Results: The age of 11 included patients were (78.1±6.3) years, with 8 males. A total of 10 patients were with NYHA functional class Ⅲ or Ⅳ. Devices were delivered via the access, deployed, implanted and withdrawn successfully in all patients. Post-implant mean transaortic gradient was (7.55±4.08) mmHg and maximal transaortic velocity was (1.78±0.44) m/s, and both decreased significantly as compared to baseline levels (both P<0.05). No severe aortic regurgitation or paravalvular leak was observed post TAVI. Device success was achieved in all the 11 patients. No patient died or experienced major cardiovascular adverse events up to 30 days post TAVI. Mean transaortic gradient was (9.45±5.07) mmHg and maximal transaortic velocity was (2.05±0.42) m/s at 30 days post TAVI, which were similar as the values measured immediately post TAVI (both P>0.05). Conclusions: TAVI with the Prizvalve® system is a feasible and relatively safe procedure for patients with severe aortic stenosis and at high risk or inappropriate for SAVR. Further clinical studies could be launched to obtain more clinical experience with Prizvalve® system.
Collapse
Affiliation(s)
- J F Wei
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - H R Yang
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y Peng
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - S He
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y Chen
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Z G Zhao
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - W Meng
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - X Zhou
- Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y J Liang
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - W X Zhou
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - X Wei
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - X Li
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - F Chen
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Z K Zhu
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y Zhang
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - J J He
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - M Chen
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y Feng
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China
| |
Collapse
|
4
|
Zhang ZY, Yang HB, Huang MH, Gan ZG, Yuan CX, Qi C, Andreyev AN, Liu ML, Ma L, Zhang MM, Tian YL, Wang YS, Wang JG, Yang CL, Li GS, Qiang YH, Yang WQ, Chen RF, Zhang HB, Lu ZW, Xu XX, Duan LM, Yang HR, Huang WX, Liu Z, Zhou XH, Zhang YH, Xu HS, Wang N, Zhou HB, Wen XJ, Huang S, Hua W, Zhu L, Wang X, Mao YC, He XT, Wang SY, Xu WZ, Li HW, Ren ZZ, Zhou SG. New α-Emitting Isotope ^{214}U and Abnormal Enhancement of α-Particle Clustering in Lightest Uranium Isotopes. Phys Rev Lett 2021; 126:152502. [PMID: 33929212 DOI: 10.1103/physrevlett.126.152502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/25/2021] [Accepted: 03/05/2021] [Indexed: 06/12/2023]
Abstract
A new α-emitting isotope ^{214}U, produced by the fusion-evaporation reaction ^{182}W(^{36}Ar,4n)^{214}U, was identified by employing the gas-filled recoil separator SHANS and the recoil-α correlation technique. More precise α-decay properties of even-even nuclei ^{216,218}U were also measured in the reactions of ^{40}Ar, ^{40}Ca beams with ^{180,182,184}W targets. By combining the experimental data, improved α-decay reduced widths δ^{2} for the even-even Po-Pu nuclei in the vicinity of the magic neutron number N=126 are deduced. Their systematic trends are discussed in terms of the N_{p}N_{n} scheme in order to study the influence of proton-neutron interaction on α decay in this region of nuclei. It is strikingly found that the reduced widths of ^{214,216}U are significantly enhanced by a factor of two as compared with the N_{p}N_{n} systematics for the 84≤Z≤90 and N<126 even-even nuclei. The abnormal enhancement is interpreted by the strong monopole interaction between the valence protons and neutrons occupying the π1f_{7/2} and ν1f_{5/2} spin-orbit partner orbits, which is supported by the large-scale shell model calculation.
Collapse
Affiliation(s)
- Z Y Zhang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - H B Yang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - M H Huang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Z G Gan
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - C X Yuan
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China
| | - C Qi
- Department of Physics, Royal Institute of Technology (KTH), Stockholm SE-10691, Sweden
| | - A N Andreyev
- Department of Physics, University of York, York YO10 5DD, United Kingdom
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - M L Liu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - L Ma
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - M M Zhang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y L Tian
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y S Wang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - J G Wang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - C L Yang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - G S Li
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y H Qiang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - W Q Yang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - R F Chen
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - H B Zhang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Z W Lu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X X Xu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - L M Duan
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - H R Yang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - W X Huang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Z Liu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - X H Zhou
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Y H Zhang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - H S Xu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - N Wang
- Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, Guilin 541004, China
| | - H B Zhou
- Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, Guilin 541004, China
| | - X J Wen
- Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, Guilin 541004, China
| | - S Huang
- Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, Guilin 541004, China
| | - W Hua
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China
| | - L Zhu
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China
| | - X Wang
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Y C Mao
- Department of Physics, Liaoning Normal University, Dalian 116029, China
| | - X T He
- College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - S Y Wang
- Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University, Weihai 264209, China
| | - W Z Xu
- Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University, Weihai 264209, China
| | - H W Li
- Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Institute of Space Sciences, Shandong University, Weihai 264209, China
| | - Z Z Ren
- School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
| | - S G Zhou
- CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
- Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000, China
| |
Collapse
|
5
|
Zhang N, Guo PJ, Liu PL, Yang HR, Xiao J, Li XP, Huang JB, Zheng YZ. [Comparison of age-based clinical and abnormal immune parameters in patients with Henoch-Schönlein purpura]. Zhonghua Xue Ye Xue Za Zhi 2018; 38:60-64. [PMID: 28219228 PMCID: PMC7348411 DOI: 10.3760/cma.j.issn.0253-2727.2017.01.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Objective: To explore age-based clinical and immune parameters in Henoch-Schönlein purpura (HSP) to determine clinically useful markers reflecting disease characteristic. Methods: A cohort of 502 patients with HSP were enrolled into this retrospective study to evaluate their clinical and immune data. Results: Majority HSP cases occurred at age ≤14 years and showed significant immune imbalances of ESR, CD3(+) cells, CD4(+) cells, CD3(-)CD16(+)CD56(+) cells, CD4(+)/CD8(+) cells, IgG, IgA, IgM, IgE, complements C3/C4 and ASO in the acute phase. Compared to patients aged >14 years, symptoms of joint were more frequent at disease onset in patients aged ≤14 years (20.8% vs 7.6%, χ(2)=13.547, P<0.001) , and involvement of digestive tract and joint were also more frequent (57.4% vs 33.8%, χ(2)=24.106, P<0.001; 55.9% vs 32.5%, χ(2)=23.768, P<0.001, respectively) , but not for involvement of kidney (21.4% vs 51.3%, χ(2)=42.440, P<0.001) . The patients aged ≤14 years had distinct immune state, reductions of CD3(+) cells, CD4(+) cells and IgG were more frequent than patients aged >14 years, also increase of ASO (33.1% vs 20.0%, χ(2)=6.656, P=0.010) , but not increase of IgA (2.6% vs 39.4%, χ(2)=15.582, P<0.001) . In addition, reduction of IgG and increase of IgE were positively associated with digestive tract involvement (P<0.001, P=0.001, respectively) , reduction of CD3(+)CD4(+) cells and normal IgM were positively associated with joint involvement (P=0.004, P=0.003, respectively) , increase of CD3(+)CD8(+) cells and normal CD3(+) cells were positively associated with kidney involvement (P=0.032, P=0.014, respectively) . Conclusion: HSP showed significant immune imbalance in the acute phase, patients between aged ≤14 and >14 years had distinct clinical and immune characteristic, and abnormal immune parameters were significantly associated with organ involvements.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Y Z Zheng
- Institute of Hematology & Blood Diseases Hospital, CAMS & PUMC, Tianjin 300020, China
| |
Collapse
|
6
|
Kwon M, Bak JG, Choh KK, Choi JH, Choi JJ, Choi JW, Chung JI, England AC, Hong JS, Hwang SM, Kim BC, Kim JY, Kim SS, Kim WC, Ko WH, Lee BJ, Lee DK, Lee HG, Lee SG, Na HK, Seo DC, Seo SH, Yang HR, Yang JG, Yoo SJ, You KI, Yoon NS. Overview of Hanbit Experimental Program. ACTA ACUST UNITED AC 2018. [DOI: 10.13182/fst01-a11963409] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Kwon
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - J. G. Bak
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - K. K. Choh
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - J. H. Choi
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - J. J. Choi
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
- HANBIT User Group
| | - J. W. Choi
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - J. I. Chung
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
- HANBIT User Group
| | - A. C. England
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - J. S. Hong
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - S. M. Hwang
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - B. C. Kim
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - J. Y. Kim
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - S. S. Kim
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - W. C. Kim
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - W. H. Ko
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
- HANBIT User Group
| | - B. J. Lee
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - D. K. Lee
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - H. G. Lee
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - S. G. Lee
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - H. K. Na
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - D. C. Seo
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
- HANBIT User Group
| | - S. H. Seo
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - H. R. Yang
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - J. G. Yang
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - S. J. Yoo
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - K.-I. You
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
| | - N. S. Yoon
- Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, Korea
- HANBIT User Group
| |
Collapse
|
7
|
Liu XM, Yang HR, Cui YD, Chen GW, Yang Y, Wu XQ, Yao XK, Han DD, Han XX, Zeng C, Guo J, Li WL, Cheng G, Tong LM. Graphene-clad microfibre saturable absorber for ultrafast fibre lasers. Sci Rep 2016; 6:26024. [PMID: 27181419 PMCID: PMC4867430 DOI: 10.1038/srep26024] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 04/26/2016] [Indexed: 11/29/2022] Open
Abstract
Graphene, whose absorbance is approximately independent of wavelength, allows broadband light–matter interactions with ultrafast responses. The interband optical absorption of graphene can be saturated readily under strong excitation, thereby enabling scientists to exploit the photonic properties of graphene to realize ultrafast lasers. The evanescent field interaction scheme of the propagating light with graphene covered on a D-shaped fibre or microfibre has been employed extensively because of the nonblocking configuration. Obviously, most of the fibre surface is unused in these techniques. Here, we exploit a graphene-clad microfibre (GCM) saturable absorber in a mode-locked fibre laser for the generation of ultrafast pulses. The proposed all-surface technique can guarantee a higher efficiency of light–graphene interactions than the aforementioned techniques. Our GCM-based saturable absorber can generate ultrafast optical pulses within 1.5 μm. This saturable absorber is compatible with current fibre lasers and has many merits such as low saturation intensities, ultrafast recovery times, and wide wavelength ranges. The proposed saturable absorber will pave the way for graphene-based wideband photonics.
Collapse
Affiliation(s)
- X M Liu
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China.,State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou 310027, China
| | - H R Yang
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
| | - Y D Cui
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
| | - G W Chen
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
| | - Y Yang
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
| | - X Q Wu
- State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou 310027, China
| | - X K Yao
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
| | - D D Han
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
| | - X X Han
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
| | - C Zeng
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
| | - J Guo
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
| | - W L Li
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
| | - G Cheng
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China
| | - L M Tong
- State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou 310027, China
| |
Collapse
|
8
|
Yang HR, Hu XP, Jiang CJ, Qi J, Wu YC, Li W, Zeng YJ, Li CF, Liu SX. Diversity and antimicrobial activity of endophytic fungi isolated from Cephalotaxus hainanensis Li, a well-known medicinal plant in China. Lett Appl Microbiol 2015; 61:484-90. [PMID: 26280451 DOI: 10.1111/lam.12483] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 07/22/2015] [Accepted: 08/06/2015] [Indexed: 11/29/2022]
Abstract
UNLABELLED About 1051 endophytic fungi were isolated from leaves, branches, barks and stems of Cephalotaxus hainanensis Li from four sites in Hainan, China. The fungi were identified as 21 genera by morphology and ITS sequences. One dominant species was Phomopsis quercella in Hainan Tropical Botanical Garden and Bawangling Nature Reserve, with relative frequency of 42·06 and 34·88% respectively. Another dominant species was Colletotrichum boninense in Wuzhishan and Jianfengling Nature Reserves, with relative frequency of 36·84 and 46·97% respectively. Among the selected 21 endophytic fungi, 17 strains (80·95%) had activity against at least one pathogenic bacteria, and 14 strains (66·67%) exhibited activity against at least one fungal pathogens. Neonectria macroconidialis showed strong inhibition against Staphylococcus aureus (inhibition zone being 20 mm), Bacillus subtilis (14 mm) and Streptococcus agalactiae (28 mm). Xylaria sp. showed strong inhibition against Escherichia coli (20 mm), Rhizoctonia solani (20 mm) and Sclerotinia sclerotiorum (17 mm). Verticillium bulbillosum showed great activity against Strep. agalactiae (32 mm) and Fusarium oxysporum (22 mm). These endophytic fungi showed potentials in medicine development. SIGNIFICANCE AND IMPACT OF THE STUDY Endophytic fungi from medicinal plants are an important source of novel and viable drugs. Cephalotaxus hainanensis Li is well known for leukaemia treatment and its endophytic fungi were isolated to investigate the diversity and antimicrobial activity. It was found that Ce. hainanensis Li had rich endophytic fungi, and some fungi showed strong antimicrobial activity against certain pathogens. These fungi can be used in medicine development.
Collapse
Affiliation(s)
- H R Yang
- College of Food Science and Technology, Hainan University, Haikou, China
| | - X P Hu
- College of Food Science and Technology, Hainan University, Haikou, China
| | - C J Jiang
- College of Food Science and Technology, Hainan University, Haikou, China
| | - J Qi
- College of Food Science and Technology, Hainan University, Haikou, China
| | - Y C Wu
- College of Food Science and Technology, Hainan University, Haikou, China
| | - W Li
- College of Food Science and Technology, Hainan University, Haikou, China
| | - Y J Zeng
- College of Food Science and Technology, Hainan University, Haikou, China
| | - C F Li
- College of Food Science and Technology, Hainan University, Haikou, China
| | - S X Liu
- College of Food Science and Technology, Hainan University, Haikou, China
| |
Collapse
|
9
|
Chuang MF, Ni HF, Yang HR, Shu SL, Lai SY, Jiang YL. First Report of Stem Canker Disease of Pitaya (Hylocereus undatus and H. polyrhizus) Caused by Neoscytalidium dimidiatum in Taiwan. Plant Dis 2012; 96:906. [PMID: 30727398 DOI: 10.1094/pdis-08-11-0689-pdn] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Pitaya (Hylocereus undatus and H. polyrhizus Britt. & Rose), a perennial succulent plant grown in the tropics, is becoming an emerging and important fruit plant in Taiwan. In September of 2009 and 2010, a number of pitaya plants were found to have a distinctive canker on stems. The disease expanded quickly to most commercial planting areas in Taiwan (e.g., Pintung, Chiayi, and Chunghua). Symptoms on the stem were small, circular, sunken, orange spots that developed into cankers. Pycnidia were erumpent from the surface of the cankers and the stems subsequently rotted. After surface disinfestation with 0.1% sodium hypochloride, tissues adjacent to cankers were placed on acidified potato dextrose agar (PDA) and incubated at room temperature for 1 week, after which colonies with dark gray-to-black aerial mycelium grew. Hyphae were branched, septate, and brown and disarticulated into 0- to 1-septate arthrospores. Sporulation was induced by culturing on sterile horsetail tree (Casuarina equisetifolia) leaves. Conidia (12.79 ± 0.72 × 5.14 ± 0.30 μm) from pycnidia were one-celled, hyaline, and ovate. The internal transcribed spacer (ITS) region of ribosomal DNA was PCR amplified with primers ITS1 and ITS4 (2) and sequenced. The sequence (GenBank Accession No. HQ439174) showed 99% identity to Neoscytalidium dimidiatum (Penz.) Crous & Slippers (GenBank Accession No. GQ330903). On the basis of morphology and nucleotide-sequence identity, the isolates were identified as N. dimidiatum (1). Pathogenicity tests were conducted in two replicates by inoculating six surface-sterilized detached stems of pitaya with either mycelium or conidia. Mycelial plugs from 2-day-old cultures (incubated at 25°C under near UV) were inoculated to the detached stems after wounding with a sterile needle. Conidial suspensions (103 conidia/ml in 200 μl) were inoculated to nonwounded stems. Noninoculated controls were treated with sterile medium or water. Stems were then incubated in a plastic box at 100% relative humidity and darkness at 30°C for 2 days. The symptoms described above were observed on inoculated stems at 6 to 14 days postinoculation, whereas control stems did not develop any symptoms. N. dimidiatum was reisolated from symptomatic tissues. To our knowledge, this is the first report of N. dimidiatum causing stem canker of pitaya. References: (1) P. W. Crous et al. Stud. Mycol. 55:235, 2006. (2) T. J. White et al. Page 315 in: PCR Protocols: A Guide to Methods and Applications. M. A. Innis et al., eds. Academic Press, New York, 1990.
Collapse
Affiliation(s)
- M F Chuang
- Department of Plant Protection, Chiayi Agricultural Experiment Branch, Agricultural Research Institute, Chiayi, Taiwan
| | - H F Ni
- Department of Plant Protection, Chiayi Agricultural Experiment Branch, Agricultural Research Institute, Chiayi, Taiwan
| | - H R Yang
- Department of Plant Protection, Chiayi Agricultural Experiment Branch, Agricultural Research Institute, Chiayi, Taiwan
| | - S L Shu
- Department of Plant Protection, Chiayi Agricultural Experiment Branch, Agricultural Research Institute, Chiayi, Taiwan
| | - S Y Lai
- Department of Plant Protection, Chiayi Agricultural Experiment Branch, Agricultural Research Institute, Chiayi, Taiwan
| | - Y L Jiang
- Department of Horticulture, National Taiwan University, Taipei, Taiwan, R.O.C
| |
Collapse
|
10
|
Ni HF, Liou RF, Hung TH, Chen RS, Yang HR. First Report of Fruit Rot Disease of Mango Caused by Botryosphaeria dothidea and Neofusicoccum mangiferae in Taiwan. Plant Dis 2010; 94:128. [PMID: 30754419 DOI: 10.1094/pdis-94-1-0128c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Mango (Mangifera indica L.) is an economically important fruit crop in the tropical and subtropical areas of the world. In southern Taiwan, mango is grown on 18,000 ha of hilly land mainly located in Tainan, Kaohsiung, and Pingtung. Tons (180,000) of mango with a value of NT$6.6 billion (US$206 million) are produced annually. In 2008, mango fruit rot disease was observed 1 week after harvest on 30 to 72% of stored mangoes collected from seven orchards in southern Taiwan. The initial symptom was a small, brown lesion and rot symptoms advanced progressively. Two predominant fungi were isolated from the margin of lesions on acidified potato dextrose agar (PDA with lactic acid, pH 3.8). Isolates of each fungal type were transferred to 2% water agar containing sterilized pine needles and exposed to near UV light to induce sporulation. For the first fungus, conidia obtained from pycnidia were ovate, one-celled, and hyaline, with an average length and width of 12.93 ± 0.93 × 6.98 ± 0.40 μm and an average length/width ratio of 1.85. To confirm the identity of the fungus, PCR amplification by universal primers, ITS1/ITS4, and DNA sequencing of the internal transcribed spacer (ITS1-5.8S-ITS2 rRNA gene cluster) were conducted. The internal transcribed spacer (ITS) sequence of ribosomal DNA of this fungus was analyzed and submitted to GenBank (Accession No. GQ421486). It showed a sequence identity of 100% with Neofusicoccum mangiferae (Syd. & P. Syd.) Crous, Slippers & A. J. L. Phillips) (GenBank Accession No. AY615185). For the second fungus, conidia obtained from pycnidia were fusiform, one-celled, and hyaline, with an average length and width of 22.87 ± 1.32 × 6.42 ± 0.46 μm and a length/width ratio of 3.53. The ITS sequence of ribosomal DNA of this fungus was analyzed and submitted to GenBank (Accession No. GQ421485). It showed a sequence identity of 100% with Botryosphaeria dothidea (Moug.: Fr.) Ces & De Not.) (GenBank Accession No. AY 786321). To test pathogenicity, four mango fruits were wounded with a sterile needle, inoculated with mycelium agar plugs (0.5 mm in diameter) excised from separate monoconidial cultures, and incubated in a plastic box with a 100% relative humidity for 2 days at room temperature. Brown lesions appeared on all wounded sites of each fungus 2 days postinoculation. In control experiments, sterile agar plugs were placed on the wounded mango fruits. These fruits remained completely free from symptoms throughout the experiment. The pathogen was reisolated from the lesions of inoculated fruits and identified as N. mangiferae and B. dothidea, thus fulfilling Koch's postulates. N. mangiferae and B. dothidea have been reported on mango trees in Australia and South Africa (1). To our knowledge, this is the first report of these fungi causing fruit rot of mango in Taiwan. References: (1) B. Slippers et al. Mycologia 97:99, 2005.
Collapse
Affiliation(s)
- H F Ni
- Department of Plant Protection, Chiayi Agricultural Experiment Branch, Agricultural Research Institute, Taiwan, R.O.C
| | - R F Liou
- Department of Plant Pathology and Microbiology, National Taiwan University, R.O.C
| | - T H Hung
- Department of Plant Pathology and Microbiology, National Taiwan University, R.O.C
| | - R S Chen
- Department of Biochemical Science and Technology, National Chiayi University, Taiwan, R.O.C
| | - H R Yang
- Department of Plant Protection, Chiayi Agricultural Experiment Branch, Agricultural Research Institute, Taiwan, R.O.C
| |
Collapse
|
11
|
Abstract
BACKGROUND Several genetic variants in transcription factor genes have been reported to be associated with Parkinson's disease (PD). The muscle segment homeobox drosophila homolog of 1 gene (MSX1) is a major upstream regulator of the dopaminergic neuronal subtype specification. AIMS OF THE STUDY To determine whether genetic variation in the coding region of the MSX1 gene plays a role in the etiology of PD. METHODS We searched for genetic variations in the coding region of the MSX1 gene in 202 patients with PD and 200 normal controls by PCR-single-strand conformation polymorphism (PCR-SSCP) and sequencing. RESULTS No mutation in the MSX1 gene was identified in our cohort. CONCLUSIONS Mutations in the coding region of the MSX1 gene play little or no role in the development of PD.
Collapse
Affiliation(s)
- H Deng
- Center for Experimental Medicine, the Third Xiangya Hospital, Central South University, China
| | | | | | | | | | | | | | | |
Collapse
|
12
|
Abstract
Production of avocado (Persea americana) has increased significantly during the last 10 years in Taiwan and the area of cultivation is approximately 500 ha. The most important postharvest disease of avocado is anthracnose caused by Colletotrichum gloeosporioides (Penz.) in Taiwan (1). In 2008, a new disease was found to be infecting avocado fruit at some orchards in Tainan County of southern Taiwan. Infected avocados developed smooth, brown, circular spots first on the surface of harvested fruits. A fungus was always isolated from the margin of lesions and could also be found from symptomless fruit pedicles and stems. Fungal colonies cultured on acidified potato dextrose agar (PDA with lactic acid; pH 3.8) were initially colorless, turned dark gradually, and ultimately became gray to dark gray. After 4 days under fluorescent light at 25°C, pycnidia formed on PDA. Conidia obtained from fruiting bodies were ovate, one celled, and hyaline, with an average length and width of 12.9 (9.9 to 15.6) × 6.4 (5.2 to 7.2) μm. The internal transcribed spacer (ITS) sequence of ribosomal DNA of this fungus was analyzed and submitted to GenBank (No. EU847427). It showed a sequence identity of 99% with Neofusicoccum mangiferae ((Syd. & P. Syd.) Crous, Slippers & A.J.L. Phillips) (GenBank No. AY615185). Thus, both morphological and molecular results confirmed the isolated fungus as N. mangiferae. Five avocado fruits were used to test the pathogenicity with three different treatment inoculation sites on each fruit. Wounded and unwounded sites on fruit were inoculated with mycelia agar plugs (0.5 mm in diameter) excised from a monoconidial culture and the fruit was kept in a plastic box with high humidity for 2 days at room temperature. Brown lesions appeared on all wounded sites 2 days postinoculation (dpi) and on unwounded sites at 4 dpi. The pathogen was reisolated from the lesions of inoculated fruits and found to be N. mangiferae, thus fulfilling Koch's postulates. In control experiments, sterile agar plugs were placed on the wounded avocado fruits. These fruits remained completely free from symptoms throughout the experiment. Several species of Botryosphaeria have been reported on avocado, including N. parvum (anamorph of B. parva), Fusicoccum aesculi (anamorph of B. dothidea), and Dothiorella aromatica (= F. luteum). To our knowledge, this is the first report of N. mangiferae causing fruit rot of avocado in Taiwan. Previously, N. mangiferae has been reported on mango trees worldwide, especially in Australia and Thailand (2). The presence of N. mangiferae in the subtropical area presents a serious disease problem not only to avocado but also to mango. References: (1) Y. P. Tsai, ed. List of Plant Diseases in Taiwan. 4th ed. Taiwan Phytopathological Society, 2002. (2) B. Slippers et al. Mycologia 97:99, 2005.
Collapse
Affiliation(s)
- H F Ni
- Department of Plant Protection, Chiayi Agricultural Experiment Branch, Agricultural Research Institute, Taiwan, R.O.C
| | - R F Liou
- Department of Plant Pathology and Microbiology, National Taiwan University, R.O.C
| | - T H Hung
- Department of Plant Pathology and Microbiology, National Taiwan University, ROC
| | - R S Chen
- Department of Biochemical Science and Technology, National Chiayi University, Taiwan, R.O.C
| | - H R Yang
- Department of Plant Protection, Chiayi Agricultural Experiment Branch, Agricultural Research Institute, Taiwan, R.O.C
| |
Collapse
|
13
|
Abstract
Jackfruit (Artocarpus heterophyllus Lam.) is a tropical fruit that is native to India. Five diseases, including Rhizopus fruit rot and anthracnose fruit rot, have been recorded in Taiwan (2). In 2003, brown lesions were observed on mature or harvested fruits at the Chiayi Agricultural Experiment Branch. The disease caused fruits to collapse and was easily distinguished from anthracnose and Rhizopus fruit rot. In the field, Rhizopus fruit rot was characterized by black flocci sporangia and mycelia covering the flowers and young fruits. Lasiodiplodia fruit rot often occurred on mature or wounded fruit and diseased fruit were covered with gray or black flat mycelia under humid conditions. In the early stage of Lasiodiplodia fruit rot, tiny yellow-brown lesions appeared on the peel. The lesions could rapidly expand to 10 cm in diameter within 5 days and became dark brown with a light margin. The rot symptoms progressed quickly from the peel surface into the sarcocarps that eventually turned black and soft. A fungus was isolated from the margin of the lesions and cultured on acidified potato dextrose agar (PDA) (pH 3.8). The morphology of the fungus was similar to Lasiodiplodia theobromae (Pat.) Griff. & Maubl. (synonym Botryodiplodia theobromae Pat.), which causes the stem-end rot of mango, papaya, and banana in Taiwan. The fungus grew well and produced pycnidia and conidia on PDA. Young conidia were ovate, hyaline, and thin walled without septa. Mature conidia (20 to 28 × 12 to 15 μm) were dark brown and thick walled with one median septum and longitudinal striations. The internal transcribed spacer (ITS) sequence of ribosomal DNA of this fungus was submitted to GenBank (Accession No. EU 407235) and showed 100% sequence identity with that of Botryosphaeria rhodina (anamorph Lasiodiplodia theobromae; GenBank Accession No. DQ458890). On the basis of morphological and molecular criteria, the fungus was identified as L. theobromae (1). Three healthy jackfruit fruits were wounded and inoculated with 2 × 2 mm mycelial agar plugs of the fungus from a monoconidial culture. A sterile agar plug was placed on the wounded site as a control. The fruits were kept in a box to maintain high humidity for 2 days at room temperature. Brown lesions were observed on all inoculated sites 6 days post infection. The pathogen was reisolated from the lesions of inoculated fruits, fulfilling Koch's postulate. The experiment was repeated twice. To our knowledge, this is the first report of L. theobromae causing fruit rot of jackfruit in Taiwan. References: (1) B. C. Sutton. The Coelomycetes. Commonwealth Mycological Institute, Kew, UK, 1980. (2) Y. P. Tsai, ed. List of Plant Diseases in Taiwan. 4th ed. Taiwan Phytopathological Society, 2002.
Collapse
Affiliation(s)
- H F Ni
- Department of Plant Protection, Chiayi Agricultural Experiment Branch, Agricultural Research Institute, Taiwan, R.O.C
| | - R S Chen
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi, Taiwan, R.O.C
| | - S F Chang
- Department of Horticulture, Agricultural Research Institute, Taiwan, R.O.C
| | - H R Yang
- Department of Plant Protection, Chiayi Agricultural Experiment Branch, Agricultural Research Institute, Taiwan, R.O.C
| |
Collapse
|
14
|
Suh DC, Kim JK, Choi JW, Choi BS, Pyun HW, Choi YJ, Kim MH, Yang HR, Ha HI, Kim SJ, Lee DH, Choi CG, Hahm KD, Kim JS. Intracranial stenting of severe symptomatic intracranial stenosis: results of 100 consecutive patients. AJNR Am J Neuroradiol 2008; 29:781-5. [PMID: 18310234 DOI: 10.3174/ajnr.a0922] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND AND PURPOSE There are a few reports regarding the outcome evaluation of balloon-expandable intracranial stent placement (BEICS). The purpose of our study was to evaluate the outcome and factors related to the adverse events (AEs) of BEICS. MATERIALS AND METHODS We evaluated 100 consecutive patients who underwent BEICS. We assessed the procedural success (residual stenosis < 50%), AEs (minor strokes, major strokes, and death), clinical outcome, and restenosis (> 50%) at 6 months. We also analyzed 18 factors including symptom patterns related to AE rate. Symptom patterns revealed 1) stable patients (n = 73) with improving, stationary, or resolved symptoms; and 2) unstable patients (n = 27) with gradual worsening or fluctuating symptoms (National Institutes of Health Stroke Scale [NIHSS] > or = 4) within 2 days before stent placement. RESULTS The procedural success rate was 99%. Overall, there were 10 (10%) AEs within the 6 months: 4 (4%) minor strokes, 3 (3%) major strokes, and 3 (3%) deaths including a death from myocardial infarction. AE rate was 4.1% in stable and 25.9% in unstable patients. Restenosis at 6 months revealed 0% (0/59). Good outcome (modified Rankin Scale < or = 2) at 6 months was 97% (71/73) in stable and 67% (18/27) in unstable patients. Stepwise logistic regression model revealed that symptom pattern (unstable versus stable) was the only significant risk factor (OR, 8.167; 95% CI, 1.933-34.500; P = .004). CONCLUSION BEICS revealed a low AE and good outcome rate at 6 months, especially in the stable patients. Midterm outcome was also favorable in the unstable patient group.
Collapse
Affiliation(s)
- D C Suh
- Department of Radiology, Asan Medical Center, University of Ulsan, College of Medicine, 388-One Pungnap-2 Dong, Songpa-Gu, Seoul 138-736, Korea.
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Pyun HW, Suh DC, Kim JK, Kim JS, Choi YJ, Kim MH, Yang HR, Jang YM, Ko MS, Cha EY, Yang DH, Kim SJ. Concomitant multiple revascularizations in supra-aortic arteries: short-term results in 50 patients. AJNR Am J Neuroradiol 2007; 28:1895-901. [PMID: 17921235 DOI: 10.3174/ajnr.a0706] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The outcome for simultaneous revascularization of more than 1 supra-aortic arterial stenosis has not been evaluated because of concerns regarding the increased risk of additional procedures. We evaluated the feasibility and safety of concomitant multiple supra-aortic arterial revascularizations (CMSAR). MATERIALS AND METHODS We retrospectively evaluated 50 consecutive patients who underwent CMSARs with angioplasty and stent placement. The study included a separate lesion group (LG) (n = 28), ipsilateral LG (n = 17) including adjacent (n = 6) and remote (n = 11) tandem lesions, and triple LG (n = 5). We assessed the procedural success (defined as residual stenosis <30%) and periprocedural event rate (ER) (minor or major stroke, and death). We compared the ERs in the lesion (ipsilateral vs separate) and symptom (unstable vs stable) pattern groups with the Fisher exact test. RESULTS Procedural success was achieved in all patients (50/50). Periprocedural events within 30 days were noted in 5 (10%). ER within 2 days after the procedure was higher in the ipsilateral LG (4/17) than in the separate LG (0/28) (P = .016). Major events consisting of a major stroke and a death occurred in 2 patients in the unstable group (4%) and was more common in the unstable (2 of 7) than in the stable group (0/38) (P = .029). During the mean 11-month follow-up period, there was 1 symptomatic recurrence. CONCLUSION CMSARs are feasible with a high procedural success rate resulting in a favorable short-term outcome. However, they must be carefully performed in ipsilateral LG, especially in patients in the unstable group.
Collapse
Affiliation(s)
- H W Pyun
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, Korea
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Yang HR, Zhai LN. [Management of rehabilitation in Japan]. Zhonghua Hu Li Za Zhi 1994; 29:59-60. [PMID: 7788749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
17
|
Abstract
A case of pulmonary nocardiosis in a 18-day-old neonate is presented. The chest roentgenograms demonstrated the widespread nodularities, mimicking miliary tuberculosis. Nocardiosis is rare in childhood but should be included in the differential diagnosis of the disseminated nodularities seen in the chest roentgenogram.
Collapse
Affiliation(s)
- O H Kim
- Department of Radiology, St. Mary's Hospital, Catholic University Medical College, Seoul, Korea
| | | | | |
Collapse
|
18
|
Wang ZM, Cao YF, Wang MZ, Duanmu BR, Yang HR, Zhang KQ, Wang JH. [An investigation of lung cancer among asbestos workers]. Hua Xi Yi Ke Da Xue Xue Bao 1986; 17:37-40. [PMID: 3804307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
19
|
Liu WP, Yang HR. [Investigation on mushroom poisoning in Ninghua County during the last 20 years]. Zhonghua Yu Fang Yi Xue Za Zhi 1982; 16:226-8. [PMID: 7172888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|